Method and system for providing channel information, and computer readable storage medium

A system for providing channel information adapted for displaying channel information on a display unit comprising:

• a command receiving module receiving a channel switching command;
• and
• a process unit connecting the display unit and the command receiving module and determining whether the channel switching command indicates a continuous switching mode or a discrete switching mode starting from a first channel;
• wherein if determining the channel switching command indicating the continuous switching mode, the process unit outputs the first channel content continuously to the display unit, separately displays a descriptive information of a plurality of channels being switched until a second channel being selected there-from, while if determining the channel switching command indicating the discrete switching mode or after the selection of the second channel under the continuous mode, the process unit outputs a preview information of the second channel replacing the first channel content to the display unit, simultaneously loads the second channel content and displays the complete second channel content when the loading finished;
• wherein the data quantity of the descriptive information is less than the data quantity of the preview information;
• wherein the process unit determines the channel switching command being under the continuous switching mode when the channel switching command is a sequential channel up/down switching from the first channel and being an up/down channel switching command satisfying a switching criteria while the process unit determines the channel switching command being under the discrete switching mode when the channel switching command includes a channel number of the second channel or a sequential channel up/down switching from the first channel yet not being the up/down channel switching command satisfying the switching criteria.